/* Calculadora Knauf (Muriel). Todo bajo .mk para no chocar con el tema. */

.mk {
    --mk-primary: #002659;
    --mk-primary-light: #003d8f;
    --mk-accent: #ffa300;
    --mk-text: #1a1a1a;
    --mk-muted: #5f6b7a;
    --mk-border: #dde2e8;
    --mk-bg: #f5f7fa;
    max-width: 1000px;
    margin: 0 auto;
    color: var(--mk-text);
    font-size: 15px;
    line-height: 1.5;
    text-align: left;
}

.mk *,
.mk *::before,
.mk *::after {
    box-sizing: border-box;
}

.mk-card {
    margin-bottom: 1rem;
    padding: 1.5rem;
    background: #fff;
    border: 1px solid var(--mk-border);
    border-radius: 16px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, .04);
}

.mk .mk-step {
    display: flex;
    align-items: center;
    gap: .6rem;
    margin: 0 0 1rem;
    font-size: 1.1rem;
    line-height: 1.3;
    color: var(--mk-primary);
}

.mk-step span {
    display: inline-grid;
    flex: none;
    place-items: center;
    width: 28px;
    height: 28px;
    font-size: .9rem;
    color: #fff;
    background: var(--mk-accent);
    border-radius: 50%;
}

/* --- Sistemas --- */
.mk-systems {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: .9rem;
}

.mk .mk-sys {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: .35rem;
    margin: 0;
    padding: 1.1rem 1.1rem 1.2rem;
    cursor: pointer;
    background: var(--mk-bg);
    border: 2px solid transparent;
    border-radius: 14px;
    transition: border-color .15s ease, background-color .15s ease, transform .15s ease;
}

.mk .mk-sys:hover {
    transform: translateY(-2px);
    border-color: var(--mk-border);
}

.mk .mk-sys.is-active {
    background: #fff;
    border-color: var(--mk-accent);
    box-shadow: 0 6px 18px rgba(255, 163, 0, .18);
}

.mk .mk-sys input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.mk .mk-sys:focus-within {
    outline: 3px solid rgba(0, 38, 89, .35);
    outline-offset: 2px;
}

.mk-sys__ico {
    width: 52px;
    height: 52px;
    margin-bottom: .25rem;
    color: var(--mk-primary);
}

.mk-sys.is-active .mk-sys__ico {
    color: #d98a00;
}

.mk-sys__name {
    font-weight: 700;
    color: var(--mk-primary);
}

.mk-sys__desc {
    font-size: .85rem;
    color: var(--mk-muted);
}

/* --- Medidas --- */
.mk-tabs {
    display: inline-flex;
    gap: 4px;
    margin-bottom: 1rem;
    padding: 4px;
    background: var(--mk-bg);
    border-radius: 999px;
}

.mk .mk-tab {
    margin: 0;
    padding: .5rem 1rem;
    font: inherit;
    font-size: .9rem;
    font-weight: 600;
    color: var(--mk-muted);
    background: transparent;
    border: 0;
    border-radius: 999px;
    box-shadow: none;
    transform: none;
    cursor: pointer;
}

.mk .mk-tab:hover {
    color: var(--mk-primary);
    background: transparent;
    box-shadow: none;
    transform: none;
}

.mk .mk-tab.is-active {
    color: #fff;
    background: var(--mk-primary);
}

.mk-row {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-end;
    gap: .75rem 1rem;
}

.mk .mk-field {
    display: flex;
    flex: 1 1 160px;
    flex-direction: column;
    gap: .3rem;
    margin: 0;
}

.mk .mk-field > span {
    font-size: .8rem;
    font-weight: 600;
    color: var(--mk-muted);
}

.mk .mk-field input {
    width: 100%;
    height: 48px;
    margin: 0;
    padding: 0 .9rem;
    font: inherit;
    font-size: 1.05rem;
    font-variant-numeric: tabular-nums;
    color: var(--mk-text);
    background: #fff;
    border: 1.5px solid var(--mk-border);
    border-radius: 10px;
    box-shadow: none;
}

.mk .mk-field input:focus {
    outline: none;
    border-color: var(--mk-primary);
    box-shadow: 0 0 0 3px rgba(0, 38, 89, .12);
}

.mk .mk-field--opt input {
    background: var(--mk-bg);
}

.mk-x {
    padding-bottom: .7rem;
    font-size: 1.3rem;
    color: var(--mk-muted);
}

.mk-total {
    min-height: 1.5em;
    margin: 1rem 0 0;
    color: var(--mk-muted);
}

.mk-total strong {
    color: var(--mk-primary);
    font-size: 1.1rem;
}

.mk-warn {
    color: #b42318;
}

/* --- Resultado --- */
.mk-card--result {
    border-top: 4px solid var(--mk-accent);
}

.mk-empty {
    margin: 0;
    color: var(--mk-muted);
}

.mk-result__head {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    justify-content: space-between;
    gap: .25rem 1rem;
    margin-bottom: .5rem;
}

.mk-result__head .mk-step {
    margin-bottom: 0;
}

.mk-result__sys {
    margin: 0;
    font-size: .85rem;
    font-weight: 600;
    color: var(--mk-muted);
}

.mk-groups {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem 1.5rem;
    margin-top: 1rem;
}

.mk .mk-group h4 {
    margin: 0 0 .4rem;
    font-size: .75rem;
    font-weight: 700;
    letter-spacing: .1em;
    text-transform: uppercase;
    color: #b37100;
}

.mk .mk-group ul {
    margin: 0;
    padding: 0;
    list-style: none;
}

.mk-item {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 1rem;
    padding: .55rem 0;
    border-bottom: 1px dashed var(--mk-border);
}

.mk-item__name {
    color: var(--mk-text);
}

.mk-item__q {
    flex: none;
    font-size: .9rem;
    color: var(--mk-muted);
    white-space: nowrap;
    font-variant-numeric: tabular-nums;
}

.mk-item__q strong {
    font-size: 1.1rem;
    color: var(--mk-primary);
}

.mk-note {
    margin: 1.25rem 0 0;
    padding: .75rem 1rem;
    font-size: .88rem;
    background: rgba(255, 163, 0, .1);
    border-left: 4px solid var(--mk-accent);
    border-radius: 0 10px 10px 0;
}

.mk-actions {
    display: flex;
    flex-wrap: wrap;
    gap: .6rem;
    margin-top: 1.25rem;
}

.mk .mk-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .5rem;
    min-height: 46px;
    margin: 0;
    padding: .65rem 1.2rem;
    font: inherit;
    font-weight: 600;
    text-decoration: none;
    border: 2px solid transparent;
    border-radius: 10px;
    box-shadow: none;
    transform: none;
    cursor: pointer;
}

.mk .mk-btn--wa,
.mk .mk-btn--wa:visited {
    color: #fff;
    background: #25d366;
}

.mk .mk-btn--wa:hover {
    color: #fff;
    background: #1da851;
}

.mk .mk-btn--ghost {
    color: var(--mk-primary);
    background: #fff;
    border-color: var(--mk-primary);
}

.mk .mk-btn--ghost:hover {
    color: #fff;
    background: var(--mk-primary);
    box-shadow: none;
    transform: none;
}

@media (max-width: 760px) {
    .mk-systems,
    .mk-groups {
        grid-template-columns: 1fr;
    }

    .mk .mk-sys {
        display: grid;
        grid-template-columns: 44px 1fr;
        column-gap: .8rem;
        padding: .9rem;
    }

    .mk-sys__ico {
        grid-row: span 2;
        width: 44px;
        height: 44px;
        margin: 0;
    }

    .mk-x {
        display: none;
    }

    .mk-card {
        padding: 1.1rem;
    }

    .mk-actions,
    .mk .mk-btn {
        width: 100%;
    }
}

@media print {
    body * {
        visibility: hidden;
    }

    .mk-card--result,
    .mk-card--result * {
        visibility: visible;
    }

    .mk-card--result {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        border: 0;
        box-shadow: none;
    }

    .mk-actions {
        display: none !important;
    }
}